"When I was a teenager, I battled some severe depression," she tells Dr. Monica Shahbaznia. "I attempted suicide a couple times. I went to a mental institution ... drugs, overdosing, slitting wrists, all that stuff."

The 30-year-old TV personality states the reason for her behavior was due to not getting the love and support she yearned for from her distant mother.

"I was left on my own," she says, holding back tears. "I was a young f------ girl. All I wanted was for my mom to say, 'I love you, and I'm here for you.' I never got that."

For more on Kendra's life, see the photos below:

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Kendra Wilkinson says she attempted suicide as a teen, was institutionalized

HOLLYWOOD - JUNE 12: Publisher Hugh Hefner with Girls Next Door Kendra Wilkinson, Holly Madison and Bridget Marquardt in the audience during the 36th AFI Life Achievement Award tribute to Warren Beatty held at the Kodak Theatre on June 12, 2008 in Hollywood, California. The show will air on USA Network at 9PM PST on June 25, 2008. (Photo by Frazer Harrison/Getty Images for AFI)

BEVERLY HILLS, CA - SEPTEMBER 06: Playboy Model Kendra Wilkinson of 'The Girls Next Door' attends National Lampoon's A Night of Fantasy with The Girls Next Door & Ludacris at The Playboy Mansion on September 6, 2008 in Los Angeles, California. (Photo by C Flanigan/FilmMagic)

ATLANTIC CITY, NJ - AUGUST 30: (Left) Bridget Marquardt and (Right) Kendra Wilkinson from 'The Girls Next Door' pose for photographs before entering The Pool at Harrah's on August 30, 2008 in Atlantic City, New Jersey (Photo by Tom Briglia/FilmMagic)

LOS ANGELES, CA - NOVEMBER 15: 'The Girls Next Door' reality series star Kendra Wilkinson attends a signing of 'Playboy Cover to Cover: The 50s' at Barnes & Noble Booksellers at The Grove on November 15, 2007 in Los Angeles, California. (Photo by David Livingston/Getty Images)

LAS VEGAS - FEBRUARY 18: 'Girls Next Door' cast member Kendra Wilkinson attends the 2007 NBA All-Star Game 'Diddy' After Party at the Rain Nightclub in the Palms Hotel and Casino on February 18, 2007 in Las Vegas, Nevada. (Photo by Ray Tamarra/Getty Images)

LOS ANGELES, CA - APRIL 06: Kendra Wilkinson is seen on April 06, 2014 in Los Angeles, California. (Photo by Chinchilla/Bauer-Griffin/GC Images)

WEST HOLLYWOOD, CA - APRIL 05: TV personality Kendra Wilkinson, Hank Baskett and Hank Baskett IV arrive at Safe Kids Day at The Lot on April 5, 2014 in West Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)

WEST HOLLYWOOD, CA - APRIL 05: Hank Baskett IV, Kendra Wilkinson, and Hank Baskett attend the Safe Kids Day at The Lot on April 5, 2014 in West Hollywood, California. (Photo by Jason Merritt/Getty Images)

Sadly, Wilkinson isn't the only former Playboy model that has once considered suicide. Her Girls Next Door costar, Holly Madison, opened up about her dark moments in her tell-all memoir Down the Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny.

"Life inside the notorious Mansion wasn't a dream at all -- and quickly became [Holly's] nightmare," a press release for the novel stated. "After losing her identity, her sense of self-worth, and her hope for the future, Holly found herself sitting alone in a bathtub contemplating suicide."

Despite the fact these two have been through similar situations, their relationship has taken an ugly turn. In another promo for Wilkinson's show, she slams Madison for writing "disgusting" lies about Hugh Hefner in the memoir.

"What Holly is saying is extremely false," the model says in the clip. "I'm like, 'Where did this s--t come from?'"

Hefner has denied Madison's accusations, saying the 35-year-old, who broke up with him in 2008 after five years together, rewrote history.

"Over the course of my life, I've had more than my fair share of romantic relationships with wonderful women. Many moved on to live happy, healthy and productive lives, and I'm pleased to say remain dear friends today," the 89-year-old told ET in a statement. "Sadly, there are a few who have chosen to rewrite history in an attempt to stay in the spotlight. I guess, as the old saying goes: You can't win 'em all!"

Watch the video below to hear more of Wilkinson's thoughts on Madison's book.